
Activists have marched through the Polish city of Katowice, where a two-week United Nations climate summit - Katowice Climate Change Conference (COP24) - is under way.
The protesters are calling for more action from governments to tackle global warming.
However, attempts to incorporate a key scientific study into climate talks failed, after it was blocked by countries including the United States and Saudi Arabia.
Al Jazeera's Victoria Gatenby reports.